Magnetic susceptibility of Co2+ pairs in [Co-2(ox)tpmc](ClO4)(2)center dot 3H(2)O cluster complex
Апстракт
Calculation of the magnetic susceptibility of Co2+ pairs in the recently synthesized cobaltous cluster complex [Co-2(ox)tpmc](ClO4)(2). 3H(2)O has been conducted by the use of two different theoretical models. The calculated results were compared to the experimental data collected in a wide temperature region. Conclusions on both the magnetic properties of Co2+ dimers and the validity of the proposed models have been drawn. In the temperature region above chi(T) maximum, the best results are obtained with the Heisenberg model that includes spin-orbit coupling and excited single-ion levels. In the low-temperature region anisotropy of the magnetic properties dominates and Ising dimer ground-stare model gives a more appropriate description. Obtained g-values (g(parallel to a) = 5.67, g(parallel to b) = 5.73, and g(perpendicular to) = 1.54) confirm strong Co2+ anisotropy. Each model gives the same value of the intracluster exchange integral J/k(B) approximate to - 14.6 K, within the fittin...g error. (C) 2000 Elsevier Science B.V. All rights reserved.
Кључне речи:
cobalt complex / magnetic susceptibility / clusters / magnetic propertiesИзвор:
Journal of Magnetism and Magnetic Materials, 2000, 219, 3, 269-274
DOI: 10.1016/S0304-8853(00)00021-4
ISSN: 0304-8853
WoS: 000089365700004
Scopus: 2-s2.0-0034274017
Колекције
Институција/група
VinčaTY - JOUR AU - Spasojević, Vojislav AU - Kusigerski, Vladan AU - Sovilj, Sofija P. AU - Mrozinski, J PY - 2000 UR - https://vinar.vin.bg.ac.rs/handle/123456789/2377 AB - Calculation of the magnetic susceptibility of Co2+ pairs in the recently synthesized cobaltous cluster complex [Co-2(ox)tpmc](ClO4)(2). 3H(2)O has been conducted by the use of two different theoretical models. The calculated results were compared to the experimental data collected in a wide temperature region. Conclusions on both the magnetic properties of Co2+ dimers and the validity of the proposed models have been drawn. In the temperature region above chi(T) maximum, the best results are obtained with the Heisenberg model that includes spin-orbit coupling and excited single-ion levels. In the low-temperature region anisotropy of the magnetic properties dominates and Ising dimer ground-stare model gives a more appropriate description. Obtained g-values (g(parallel to a) = 5.67, g(parallel to b) = 5.73, and g(perpendicular to) = 1.54) confirm strong Co2+ anisotropy. Each model gives the same value of the intracluster exchange integral J/k(B) approximate to - 14.6 K, within the fitting error. (C) 2000 Elsevier Science B.V. All rights reserved. T2 - Journal of Magnetism and Magnetic Materials T1 - Magnetic susceptibility of Co2+ pairs in [Co-2(ox)tpmc](ClO4)(2)center dot 3H(2)O cluster complex VL - 219 IS - 3 SP - 269 EP - 274 DO - 10.1016/S0304-8853(00)00021-4 ER -
@article{ author = "Spasojević, Vojislav and Kusigerski, Vladan and Sovilj, Sofija P. and Mrozinski, J", year = "2000", abstract = "Calculation of the magnetic susceptibility of Co2+ pairs in the recently synthesized cobaltous cluster complex [Co-2(ox)tpmc](ClO4)(2). 3H(2)O has been conducted by the use of two different theoretical models. The calculated results were compared to the experimental data collected in a wide temperature region. Conclusions on both the magnetic properties of Co2+ dimers and the validity of the proposed models have been drawn. In the temperature region above chi(T) maximum, the best results are obtained with the Heisenberg model that includes spin-orbit coupling and excited single-ion levels. In the low-temperature region anisotropy of the magnetic properties dominates and Ising dimer ground-stare model gives a more appropriate description. Obtained g-values (g(parallel to a) = 5.67, g(parallel to b) = 5.73, and g(perpendicular to) = 1.54) confirm strong Co2+ anisotropy. Each model gives the same value of the intracluster exchange integral J/k(B) approximate to - 14.6 K, within the fitting error. (C) 2000 Elsevier Science B.V. All rights reserved.", journal = "Journal of Magnetism and Magnetic Materials", title = "Magnetic susceptibility of Co2+ pairs in [Co-2(ox)tpmc](ClO4)(2)center dot 3H(2)O cluster complex", volume = "219", number = "3", pages = "269-274", doi = "10.1016/S0304-8853(00)00021-4" }
Spasojević, V., Kusigerski, V., Sovilj, S. P.,& Mrozinski, J.. (2000). Magnetic susceptibility of Co2+ pairs in [Co-2(ox)tpmc](ClO4)(2)center dot 3H(2)O cluster complex. in Journal of Magnetism and Magnetic Materials, 219(3), 269-274. https://doi.org/10.1016/S0304-8853(00)00021-4
Spasojević V, Kusigerski V, Sovilj SP, Mrozinski J. Magnetic susceptibility of Co2+ pairs in [Co-2(ox)tpmc](ClO4)(2)center dot 3H(2)O cluster complex. in Journal of Magnetism and Magnetic Materials. 2000;219(3):269-274. doi:10.1016/S0304-8853(00)00021-4 .
Spasojević, Vojislav, Kusigerski, Vladan, Sovilj, Sofija P., Mrozinski, J, "Magnetic susceptibility of Co2+ pairs in [Co-2(ox)tpmc](ClO4)(2)center dot 3H(2)O cluster complex" in Journal of Magnetism and Magnetic Materials, 219, no. 3 (2000):269-274, https://doi.org/10.1016/S0304-8853(00)00021-4 . .